In addition to 32-bit editing support, Affinity Designer also implements OpenColorIO; a colour management system that provides a full colour managed workflow. It is predominantly used for motion picture production but can be used for any situation where accurate end-to-end colour management is required.
Setting up OpenColorIO
By default, Designer's OpenColorIO features are not immediately usable. An .ocio configuration file is required alongside a number of supporting files such as lookup tables.
The OpenColorIO website (http://www.opencolorio.org) contains some sample configurations that provide a number of suitable input and output profiles, including several Academy Colour (ACES) configurations.
To configure OpenColorIO:Using OpenColorIO
OpenColorIO is exposed through two methods:
- The 32-bit Preview panel contains a Display Transform option that only becomes available with a valid OpenColorIO configuration. This can be used to achieve a non-destructive, colour managed workflow. See 32-bit Preview for more information.
- An OCIO adjustment layer (see OCIO Adjustment) can be added to losslessly convert between colour spaces. You can have multiple OCIO adjustment layers within a document, which allows you to accommodate composite layers from different colour spaces. An example layer stack might be (in hierarchical order):
- OCIO Adjustment—from Utility - Linear - sRGB back to Role - scene_linear
- sRGB Pixel Layer—composite element
- OCIO Adjustment—from Role - scene_linear to Utility - Linear - sRGB
- Pixel Layer—original layer
![](https://cdn.statically.io/img/s3-eu-west-1.amazonaws.com/affinity-docs/help/designer_beta/English.lproj/images/adjustment_ocio.png)
When loading OpenEXR documents, Designer always converts from the source colour space to scene_linear. With a valid OpenColorIO configuration, Designer will also present a message to let you know which colour profile it has converted from. This is usually determined by a filename affix, for example "render_acescg.exr".
SEE ALSO:
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